Gas-heated radiator.



F. J. PIOCH.

GAS HEATED RADIATOR. APPLICATION FILED JUNE I4. I9I6.

1,224,784.. Patented May 1, 1917.

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F. J. PIOCH. GAS HEATED RADIATOR. APPLICATION FILED JUNE 14. 1916.

Patented May 1, 1917.

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' FRANK J. PIOCH, OF SAN FRANCISCO, CALIFORNIA.

GAS- HEATED RADIATOR.

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To all whom it may concern:

Be it knownthat I, FRANK J.-v PIOGH, a citizen of the United States,residing in the city and county of San Francisco and State ofCaliforniznhave invented new and useful Improvements in Gas-Heated Radiators, of which the following is a specification.

This invention relates to a gas heated radiator and particularly toimprovements over my co-pending application entitled Gas heatedradiator, filed January 31, 1916, Serial -Number75,292.

One of the objects of the presentinvention is to provide an improvedform of damper box and a damper of novel construction operable inconjunction with same. Another object of the invention is to provide avertically adjustable discharge vent and, furthermore, to provide meansfor raising and lowering the damper box to register with same. Furtherobjectswillhereinafter appear.

The invention consists of the parts and the construction and combinationof parts as hereinafter more fully described and claimed, havingreference to the accompanyi the damper box and surrounding the openingdrawings, in which- Figure 1 is a front elevation of a gas heatedradiator partly in section.

Fig. 2 is a front view of the radiator section which contains the burnerand damper box.

Fig. 3 is a rearvertical section on line 3+3 of Fig. 4.

Fig. 4 is. a central, vertical section on line 4-4 of Fig. 2.

Fig. 5 is a horizontal of Fig. 4.

Referring to the drawings in detail, A indicates in general a gas heatedradiator and 2 a central section provided with a burner 3, a damper box4, an adjustable discharge elbow 5 and a re-heating tube 6. Positionedon each side of the central section is a plurality of radiating tubes 7which are connected 1 at their upper ends with the upper end of thecentral section through a central passage 8 and at their lower endsthrough a passage 9 with a return chamber 10 formed in the lower part ofthe central section. Each radiating tube 7 is divided to form twopassages and said section on line 5+5 passages communicate at theirupper and Patented May 1, 1917.

Application filed June 14, 1916. Serial No. 103,656.

lower ends with the longitudinal passages 8 and 9, thus permitting theformation of a large heating area. The sections 7 are, furthermore,secured with relation to the centralsection by means of a pair of tierods 11 and-12, one passing through the upper longitudinal passage 8 andone through the lower longitudinal passage 9; each end section beingprovided with a removable plug 13 to close the longitudinal passages andalso to permit the insertion of the rods 11 and 12.

The mounting of the damper box 4 and the cooperating damper 15, togetherwith the adjustable discharge vent 5, forms one of the most importantfeatures of thefpresent invention. The damper box 4 is in this instancerectangular in cross section and its length is approximately such asshown in Figs. 1 and 4. The rear side of the damper box is provided withan opening 16 which communicates with a discharge vent 17 ,formed in aplate 18.

The rear side of the central section containingthe damper boxis providedwith an oblong slot 19 (see Figs. 3 and 4), through which a boss 20,formed on the rear side of tion within the slot 19 and may also besufficientlytightened to secure the plate 18 and attached box 4 in anyadjusted position desired.- 1

The damper'15 is pivotally attached, as at 23, to the front edge of thedamper box and is so shaped thatit normally rests on the seat formed atthe upper end of the box to form a closure therefor. It may, however, beraised to form communication between the main chamber formed within thecentral section'and the interior of the damper box, with connecteddischarge vent 17, this raising movement being obtained by means of arod 24, pivotally attached, as at 25,. to a lug formed on one side ofthe damper. The lower end of this rod is provided with a handle section26 which extends through the bottom of the central section a suflicientdistance to permit it to be grasped and pulled when it is desired toraise the damper.

The burner 3 is preferably of the Bunsen type and its shape andconstruction may be such as conditions require. This burner when ignitedis supplied with air through an opening 27 formed in the bottom of thecentral section on one side of the return chamber 10 and is alsoprovided for the purpose of permitting the gas pipe to be connected withthe burner.

Forming a closure for the return chamber 10 is a removable plate 27 andforming a connection between an opening formed in said plate and thelower end of the damper box is a reheating tube 28. Formed in the frontside of the central section is an opening, in which is mounted anoutwardly swinging door 29. This door is hingedly supported at its upperend by means of a pair of screws 80. It is in this manner free to swingin an outward direction from the lower end and as the whole weight ofthe door is supported by the screws 30, it can be seen that the doorwill be self-closing when released.

Heaters of the character here shown are generally provided withcomparatively small discharge fines of short lengths. The natural draftcreated by the comparatively high discharge fines or stacks is,therefore, prac tically absent and unless an induced draft is startedtherein considerable trouble is experienced in maintaining the thewithin the chamber formed in the central section which will hereinafterbe termed the combustion chamber. An induced draft is created in thepresent instance by the damper 15.

The operation when starting the burner will be as follows: The door 29,mounted on the front side of the central section, is first opened andthe burner 3 ignited. The door is then closed and the handle section 26grasped and pulled in a downward direction to open the damper 15, thedamper being held in this position by a hook section 26 formed on thehandle section which is engaged with the front or underside of thecentral section. The heat from the burner is in this manner permitted toenter directly box into the discharge vent 17, with connected flue,causing this to become heated to such an extent that an induced draft iscreated. The reheating tube 28 is at the same time heated causing aninduced draft to be established at this point which creates a suctionthrough the lower connected passages of the radiating tubes 7.

The moment the reheating tube 28 and the discharge flue have beensufiiciently heated,

which takes place in two or three minutes, it is only necessary to closethe damper 15 by releasing the handle section 26 with relation to thefront edge of the casing. This permits the damper 15 to fall back andclose the direct communication between the combustion chamber and thedischarge flue. The heat from the burner will now pass through the upperlongitudinal passage 8, down through the radiating tubes 7, and thenthrough the lower connecting passage 9 which communicates with thereturn chamber 10, and is here finally permitted to escape through thereheating tube 6 and the damper box 4, which, as previously clescribed,is connected with the discharge flue through the vent opening 17.

The heat from the burner, when passing through the radiating tubes 7 isnaturally cooled down before reaching the return chamber 10 as the heatis absorbed and radiated by the radiating tubes. The draft will,therefore, become more or less sluggish unless reheatedby passingthrough the tube 28 which is mounted directly in the combustion chamberand subjected to the direct heat of the burner 3. A new impetus is thusgiven the escaping products of combustion and a comparatively highvelocity of draft is maintained as long as the burner is in use. Freshair to support combustion is continuously admitted through the bottomopening 27, thus permitting a perfect operation of the burner 3 and alsoproviding a means for ventilating the room in which the heater ismounted.

The adjustable discharge vent 17 is one of the important features of thepresent invention as it permits this to be raised or lowered verticallyto form an alinement with a permanent discharge vent or opening formedin the wall. The importance of this feature can be readily understoodwhen it is considered that practically all piping and plumbing is placedin a building between the partitions before the plaster or flooring isapplied. Now it mayhappen that a single flooring was intended and thatthe distance from the bottom of the radiator to the discharge vent isten inches. The plumber in.- stalling the piping can thus figure onplacing the outlet of the flue ten inches above the floor joist plus thethickness of the flooring; while it may happen that the owner decides onputting in a double flooring and on top of same a hardwood finish andpossibly a heavy rug besides. This would naturally bring the dischargevent of the radiator two or three inches above the now permanently fixedvent openings formed in the wall and would, therefore, eithernecessitate tearing out the plaster or cutting away the flooring topermit the legs of the radiator to be lowered accordingly.

The adjustable damper box and discharge vent 5 here shown positivelyeliminate this objectionable feature as they may be raised or lowered aconsiderable distance, this dis tance being limited only by the lengthof the slot 19. a

The damper provided in the present instance is simple inconstruction'andwill always close itself when the handle 26 is released.

The door constructed and mounted as here shown is also an importantfeature as it serves the function of a safety valve, that is, it willautomatically open and swing outwardly if an explosion should take placein the combustion chamber, thus permitting the force of the explosion topass directly out of the door without doing any damage.

The materials and finish of the several parts of the device here shownmay be such as the experience and judgment of the manufacturer maydictate.

I wish it understood that various changes in form, proportions anddetails of construction may be resorted to within the scope of theappended claims, and that I do not wish to limit myself to the specificdesign and construction here shown.

Having thus described my invention, what I claim and desire to secure byLetters Patent is 1. In combination a casing inclosing a combustionchamber, said casing being provided with an opening, a damper boxarranged in said casing and engaging the wall thereof around saidopening, a plate adapted to fit over said opening on the outside of saidcasing, said plate being provided with a discharge vent, said damper boxbeing provided with a vent adapted to register with the vent in saidplate, said damper box and said plate being adjustable with relation tothe opening in said casing, means for securing said damper box and saidplate together to grip the wall of the casing theretermediate between tosecure the plate and the vent therein in adjusted position, and meansfor establishing and controlling direct and incommunication between saiddamper box and said combustion chamber.

2. In a heat radiator, a combustion chamber and a return chamber, aplurality of heat-radiating tubes communicating with the combustionchamber at their upper ends and with the return chamber at their lowerends, an adjustable damper box mounted in the combustion chamber, areheating tube connecting the damper box and return chamber, a dischargeflue, and an adjustable plate having a vent opening formed therein andadapted to form communication Between the damper box and the discharge3. In a heat radiator, a combustion chamber and a return chamber, aplurality of heat-radiating tubes communicating with the combustionchamber at their upper ends and with the return chamber at their lowerends, an adjustable damper box mounted in the combustion chamber, areheating tube connecting the damper box and return chamber, a dischargeflue, an adjustable plate having a vent opening formed therein adaptedto form communication between the damper box and the discharge flue, adamper pivotally mounted on the upper end of the damper box, and a rodattached to the damper and extending through the lower end of thecombustion chamber.

4. In a heat radiator, a combustion chamber and a return chamber, aplurality of heat-radiating tubes communicating with the combustionchamber at their upper ends and with the return chamber at their lowerends, an adjustable damper box mounted in the combustion chamber, areheating tube connecting the damper box and return chamber, a dischargeflue, an adjustable plate having a vent opening formed therein adaptedto form communication between the damper box and the discharge flue, adamper pivotally mounted on the upper end of the damper box, a rodattached to the damper extending through the lower end of thecombustion'chamber, and a hook-shaped handle extension on the lower endof the rod adapted tosecure the damper in its opened position.

5. In a heat radiator the combination with a central radiator sectionand an elongated opening formed in the rear side of the section, of adamper box mounted interiorly of the section, said damper box having anoutlet opening formed therein and registering with the elongatedopening, a plate having a discharge vent formed therein and mountedexteriorly of the radiator section, said plate being longer than theelongated opening and adapted to form a cover for same, and means foradjusting the plate and damper box vertically and securing the same whenadjusted.

6. In combination, a casing inclosing a combustion chamber, a returnchamber, means maintaining communication between said combustion andsaid return chamber, an adjustable discharge vent in said casing, and atelescoping connection for establishing communication between saidreturn chamber and said discharge vent, and for adapting itself to theposition of said vent when said plate and vent are adjusted.

7 In a heat radiator, a casing inclosing a combustion chamber, a returnchamber, a

7 plurality of heat-radiating tubes communicharge vent and for adaptingitself to the position of said vent When said plate and vent areadjusted.

8. In a heat radiator, a casing inclosing. a combustion chamber and areturn cha1nber, a plurality of heat radiating tubes communicatingrespectively at their ends With said combustion chamber and saidreturnchamber, said casing being provided with an openlng, a platemounted on said casing and having a discharge vent formed thereand saidvent and for adapting itself to the position of said plate and vent Whensaid plate and vent are adjusted, the ends of the respective sections ofsaid telescoping connection being connected respectively to said returnchamber and said plate.

In testimony whereof I hereiuito set my hand in the presence of twosubscribing Witnesses.

FRANK J. PIOCH.

Witnesses F. O. ANDRES, LEONARD D. JONES.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. 0.

